LIM differences??? [Archive] - Forum


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10-23-2006, 01:27 AM
I was wondering if there are any differences in the lower intake manifolds from 99 to 2000 and up??? I have a 99 grand am but bought a 2000+ ported lim on 60*v6 by mistake. Will this work or will I have to replace my order?

Ive never heard any differences with the lim's, just the egr on the uim so Im not sure.


10-23-2006, 06:14 AM
Heater line coming out of the thermostat housing is different. 2000+ used a push in connection, while 99 used a threaded connection. You'll have to transfer over your old heater line connection and tap the housing.

10-23-2006, 07:49 AM
Damn, thats what I thought. Guess Ill have to change my order if its not too late.

10-30-2006, 11:52 AM
I see that mine has not nut to loosen, its just a straight pipe. Is this the push in? I konw my lim is a 99 but I thought the 99 was threaded?

10-30-2006, 11:56 AM
My 99 isn't threaded.

10-30-2006, 12:56 PM
Can you show me a pic of your heater plug? Mine is just a straight black pipe, but 99 is suposed to be threaded. I just got my ported lim, and he threaded a 2000 manifold for me. I hope I wont have to ground down the threads

10-30-2006, 01:52 PM
Don't have the car near me at the time. I don't know how well grinding down the threads will go.

10-30-2006, 01:53 PM
Well I have a dremel so as long as I can get it nice and smooth it would prolly be fine. I thought 99 was suposed to be threaded though? I hate GM, lol